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SUMMARY:Limits on the spectral parameters of core-collapse neutrinos extra
 cted from the Diffuse Supernovae Neutrino Flux (DSNvF).
DTSTART;VALUE=DATE-TIME:20200227T113000Z
DTEND;VALUE=DATE-TIME:20200227T115000Z
DTSTAMP;VALUE=DATE-TIME:20260717T053910Z
UID:indico-contribution-1483@indico.tlabs.ac.za
DESCRIPTION:Speakers: Ernesto Kemp (University of Campinas - UNICAMP)\nIn 
 February 1987 neutrinos from the SN1987 traveled a distance of about 50 kp
 c from the Large Magellanic Cloud and were detected on Earth by two of the
  largest neutrino telescopes of that time\, Kamiokande-II and IMB\, thus c
 onfirming the vast amount of energy (~10^53 ergs) predicted to be emitted 
 in neutrinos and setting allowed intervals for the emission parameters lik
 e the neutrinosphere temperature. The confirmation of the main features of
  neutrino emission for a single supernova also supports the prediction tha
 t all the past supernovae in the universe should originate a ubiquitous an
 d isotropic neutrino flux\, the so-called Diffuse Supernova Neutrino Flux 
 (DSNvF).  Up to now\, no evidence of events from DSNvF was found by differ
 ent neutrino telescopes. In this work\, we use the upper limit on the DSNv
 F obtained from the null results of the Super-Kamiokande collaboration to 
 estimate limits on average energy\, spectral pinching\, and neutrinosphere
  temperature for electron antineutrinos from a core-collapse neutrino burs
 t. Finally\, we check our results with those obtained from the solely SN19
 87a data concluding that the DSNvF may lead to comparable - or even better
  - upper limits on the neutrino emission parameters.\n\nhttps://indico.tla
 bs.ac.za/event/85/contributions/1483/
LOCATION:Parallel Venue
URL:https://indico.tlabs.ac.za/event/85/contributions/1483/
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